How do I replace the glass only?
How do I replace the cracked glass ONLY on my LG G4 without replacing the LCD display
The LG G4 was released in the US in early June 2015, as always focusing on high-end specifications and a refined fashion sense that makes it stand out in the premium smartphone market. Each version of the phone will have a different model number based on if it is sold by a carrier or unlocked (US or International). Some LG G4's are known to have bootloop problems.
I really would not recommend this route. The extra equipment you have to buy, the time it takes to separate the broken glass from the lcd, the risk of damaging the LCD while separating it, and the time it takes to remove the old glue from the lcd is not worth it. After that you also have to worry about permanent bubbles of the new glue between the new glass and the lcd.